Austere1. (a.) Simple; unadorned; sour; astringent; rough to the state; having acerbity; as, an austere crab apple; an austere instructor.
2. (a.) Severe in modes of judging, or living, or acting; rigid; rigorous; stern; as, an austere man, look, life.
3. (a.) Unadorned; unembellished; severely simple.
Thesaurus Entries
Albigensian, Catharist, Franciscan, Lenten, Sabbatarian, Spartan, Spartanic, Trappist, Waldensian, abstemious, abstinent, amaroidal, anchoritic, ascetic, astringent, authoritarian, bald, bare, basic, biting, bitter, bleak, candid, chaste, common, commonplace, demanding, direct, dour, dry, dull, dwarfed, dwarfish, earnest, elementary, eremitic, essential, exacting, exigent, exiguous, flagellant, frank, frugal, fundamental, grave, grim, hard, harsh, homely, homespun, homogeneous, impoverished, inclement, indivisible, inornate, irreducible, jejune, keen, lean, limited, matter-of-fact, meager, mean, mendicant, mere, meticulous, miserly, monolithic, mortified, narrow, natural, neat, niggardly, of a piece, open, paltry, parsimonious, plain, plain-speaking, plain-spoken, poor, primal, primary, prosaic, prosing, prosy, puny, pure, pure and simple, puritanical, rigoristic, rough, rugged, rustic, scant, scanty, scrawny, scrimp, scrimpy, self-denying, serious, severe, sharp, simon-pure, simple, simple-speaking, single, skimp, skimpy, slender, slight, slim, small, sober, somber, spare, sparing, stark, starvation, stern, stingy, stinted, straightforward, straitened, strict, stringent, stunted, subsistence, thin, tough, unadorned, unaffected, uncluttered, undecorated, undifferenced, undifferentiated, unelaborate, unembellished, unfancy, unfussy, ungentle, uniform, unimaginative, unnourishing, unnutritious, unornamented, unornate, unpoetical, unsparing, unvarnished, watered, watery, wedded to poverty